This study hypothesized that male counselors whose sexual orientation and physical characteristics do not conform to conventional notions of masculinity (those who have had homosexual experiences and who do not fit the mesomorphic ideal) will be less traditional in their gender role attitudes, behaviors, and beliefs than those who adhere to more traditional standards of masculinity. The Male Counselor Development Questionnaire (MCDQ) was developed to measure the attitudes, behaviors, and beliefs of male counselors. Six of the eight sections of the MCDQ were used in this study: a Masculinity Profile, the Male Sex Role Inventory, the Male Role Inventory, a Needs Assessment, and demographic and employment information. Data from 366 male members of a professional counseling association were analyzed. Sexual orientation, weight, and a mesomorphic self-description (describing oneself as muscular, hard, or strong) were found to be significantly related to male gender role attitudes. Both heterosexual counselors with homosexual experiences and bisexual to exclusively homosexual counselors were less traditional in their physical characteristics and gender role attitudes, behaviors, and beliefs than were exclusively heterosexual counselors. Heterosexual counselors with homosexual experiences were, however, found to be the least traditional of the three groups along several dimensions. (Author/NB)